Patents by Inventor Der-Zen Liu

Der-Zen Liu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Calcium phosphate complex for oral care applications, its preparation method, and compositions containing the same
    Patent number: 8263048
    Abstract: The invention is directed to a calcium phosphate complex and the composition containing the same for oral care applications, in which the calcium phosphate complex is formed by chelating the ?-polyglutamic acid (?-PGA) with amorphous calcium phosphate (ACP). This complex can prevent crystallization of ACP and maintain its high solubility. The calcium phosphate complex has superior mucoadhesion properties, allowing it to remain in the mouth longer and offering effective buffering, by which dental caries can be alleviated and prevented.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: September 11, 2012
    Assignee: Taipei Medical University
    Inventors: Jen-Chang Yang, Sheng-Yang Lee, Der-Zen Liu, Nai-Chia Teng, En-Sheng Ke, Chien Chung Chen, Dian-Yu Ji, Chen-Feng Ma, Hong-Da Wu
  • Hypoglycemic activity of osthole
    Patent number: 8198320
    Abstract: The present invention relates to a method for controlling blood glucose level and a method for the prophylaxis or treatment of diabetes mellitus and/or its complications. The present invention further relates to an anti-diabetic formulation for controlling blood glucose level and/or for the prophylaxis or treatment of diabetes mellitus and/or its complications.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: June 12, 2012
    Assignee: Taipei Medical University
    Inventors: Yu-Chih Liang, Der-Zen Liu, Ling-Fang Hung, Pei-Jung Lin, Nai-Qi Chen, Yu-Chien Chen
  • CALCIUM PHOSPHATE COMPLEX FOR ORAL CARE APPLICATIONS, ITS PREPARATION METHOD, AND COMPOSITIONS CONTAINING THE SAME
    Publication number: 20110150791
    Abstract: The invention is directed to a calcium phosphate complex and the composition containing the same for oral care applications, in which the calcium phosphate complex is formed by chelating the ?-polyglutamic acid (?-PGA) with amorphous calcium phosphate (ACP). This complex can prevent crystallization of ACP and maintain its high solubility. The calcium phosphate complex has superior mucoadhesion properties, allowing it to remain in the mouth longer and offering effective buffering, by which dental caries can be alleviated and prevented.
    Type: Application
    Filed: December 21, 2010
    Publication date: June 23, 2011
    Applicant: TAIPEI MEDICAL UNIVERSITY
    Inventors: JEN-CHANG YANG, SHENG-YANG LEE, DER-ZEN LIU, NAI-CHIA TENG, EN-SHENG KE, CHIEN CHUNG CHEN, DIAN-YU JI, CHEN-FENG MA, HONG-DA WU
  • Hypoglycemic Activity of Osthole
    Publication number: 20100168224
    Abstract: The present invention relates to a method for controlling blood glucose level and a method for the prophylaxis or treatment of diabetes mellitus and/or its complications. The present invention further relates to an anti-diabetic formulation for controlling blood glucose level and/or for the prophylaxis or treatment of diabetes mellitus and/or its complications.
    Type: Application
    Filed: December 31, 2008
    Publication date: July 1, 2010
    Applicant: Taipei Medical University
    Inventors: Yu-Chih Liang, Der-Zen Liu, Ling-Fang Hung, Pei-Jung Lin, Nai-Qi Chen, Yu-Chien Chen